How to use the enthalpy of solution from calorimetry calculator
Find the enthalpy of solution of a salt from the temperature change of the solution in a calorimeter. Enter solution mass, temperature change, moles of solute, solution specific heat in the fields above; the enthalpy of solution, heat absorbed during dissolution are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “enthalpy of solution”, “calorimeter dissolution heat”, “heat of dissolving salt”, “calculate enthalpy of solution from calorimetry”, “find enthalpy of solution”.
Formula
Variables
- m — Solution mass (g)
- dT — Temperature change (K)
- n — Moles of solute (mol)
- c — Solution specific heat (J/(g·K))
Worked example
With solution mass = 100 g, temperature change = -5 K, moles of solute = 0.1 mol, solution specific heat = 4.184 J/(g·K), the calculator gives enthalpy of solution ≈ 20.92 kJ/mol; heat absorbed during dissolution ≈ 2.092 kJ.
Frequently asked questions
What is the enthalpy of solution from calorimetry calculator used for?
Find the enthalpy of solution of a salt from the temperature change of the solution in a calorimeter. It helps with questions such as “enthalpy of solution”, “calorimeter dissolution heat”, “heat of dissolving salt”.
What is the formula for the enthalpy of solution from calorimetry calculation?
Enthalpy of solution (kJ/mol) = -m × c × dT / n / 1000. Heat absorbed during dissolution (kJ) = -m × c × dT / 1000. Here m is solution mass (g), dT is temperature change (K), n is moles of solute (mol), c is solution specific heat (J/(g·K)).
What inputs do I need for the enthalpy of solution from calorimetry calculator?
You need solution mass in g, temperature change in K, moles of solute in mol, solution specific heat in J/(g·K). Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the enthalpy of solution from calorimetry calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the enthalpy of solution from calorimetry result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.